Podobnie jak w Moto2, tak również i w Moto3 obie sesje treningowe wygrywał ten sam zawodnik. W najniższej klasie tym motocyklistą był Enea Bastianini. Za nim znalazł się duet SKY Racing Team – Romano Fenati i Andrea Migno.
Wyniki FP2 w Moto3 przed GP Argentyny na torze Termas de Rio Hondo:
1. Enea Bastianini ITA Gresini Racing Moto3 (Honda) 1m 51.137s
2. Romano Fenati ITA SKY Racing Team VR46 (KTM) 1m 51.242s
3. Andrea Migno ITA SKY Racing Team VR46 (KTM) 1m 51.303s
4. Brad Binder RSA Red Bull KTM Ajo (KTM) 1m 51.350s
5. Jorge Navarro SPA Estrella Galicia 0,0 (Honda) 1m 51.411s
6. Livio Loi BEL RW Racing GP BV (Honda) 1m 51.468s
7. Juanfran Guevara SPA RBA Racing Team (KTM) 1m 51.480s
8. Fabio Quartararo FRA Leopard Racing (KTM) 1m 51.483s
9. Philipp Oettl GER Schedl GP Racing (KTM) 1m 51.544s
10. Nicolo Bulega ITA SKY Racing Team VR46 (KTM) 1m 51.591s
11. Niccolò Antonelli ITA Ongetta-Rivacold (Honda) 1m 51.613s
12. Bo Bendsneyder NED Red Bull KTM Ajo (KTM) 1m 51.650s
13. Gabriel Rodrigo ARG RBA Racing Team (KTM) 1m 51.850s
14. Jakub Kornfeil CZE Drive M7 SIC Racing Team (Honda) 1m 52.051s
15. Jorge Martin SPA ASPAR Mahindra Team Moto3 (Mahindra) 1m 52.090s
16. Jules Danilo FRA Ongetta-Rivacold (Honda) 1m 52.209s
17. Joan Mir SPA Leopard Racing (KTM) 1m 52.251s
18. Aron Canet SPA Estrella Galicia 0,0 (Honda) 1m 52.274s
19. Hiroki Ono JPN Honda Team Asia (Honda) 1m 52.335s
20. Andrea Locatelli ITA Leopard Racing (KTM) 1m 52.377s
21. John McPhee GBR Peugeot MC Saxoprint (Peugeot) 1m 52.425s
22. Adam Norrodin MAL Drive M7 SIC Racing Team (Honda) 1m 52.484s
23. Fabio Di Giannantonio ITA Gresini Racing Moto3 (Honda) 1m 52.505s
24. Maria Herrera SPA MH6 Laglisse (KTM) 1m 52.719s
25. Khairul Idham Pawi MAL Honda Team Asia (Honda) 1m 52.872s
26. Darryn Binder RSA Platinum Bay Real Estate (Mahindra) 1m 52.988s
27. Alexis Masbou FRA Peugeot MC Saxoprint (Peugeot) 1m 53.037s
28. Francesco Bagnaia ITA ASPAR Mahindra Team Moto3 (Mahindra) 1m 53.058s
29. Karel Hanika CZE Platinum Bay Real Estate (Mahindra) 1m 54.146s
30. Tatsuki Suzuki JPN CIP-Unicom Starker (Mahindra) 1m 55.062s
31. Lorenzo Petrarca ITA 3570 Team Italia (Mahindra) 1m 55.232s
32. Stefano Valtulini ITA 3570 Team Italia (Mahindra) 1m 55.834s
33. Fabio Spiranelli ITA CIP-Unicom Starker (Mahindra) 1m 55.875s
2. Romano Fenati ITA SKY Racing Team VR46 (KTM) 1m 51.242s
3. Andrea Migno ITA SKY Racing Team VR46 (KTM) 1m 51.303s
4. Brad Binder RSA Red Bull KTM Ajo (KTM) 1m 51.350s
5. Jorge Navarro SPA Estrella Galicia 0,0 (Honda) 1m 51.411s
6. Livio Loi BEL RW Racing GP BV (Honda) 1m 51.468s
7. Juanfran Guevara SPA RBA Racing Team (KTM) 1m 51.480s
8. Fabio Quartararo FRA Leopard Racing (KTM) 1m 51.483s
9. Philipp Oettl GER Schedl GP Racing (KTM) 1m 51.544s
10. Nicolo Bulega ITA SKY Racing Team VR46 (KTM) 1m 51.591s
11. Niccolò Antonelli ITA Ongetta-Rivacold (Honda) 1m 51.613s
12. Bo Bendsneyder NED Red Bull KTM Ajo (KTM) 1m 51.650s
13. Gabriel Rodrigo ARG RBA Racing Team (KTM) 1m 51.850s
14. Jakub Kornfeil CZE Drive M7 SIC Racing Team (Honda) 1m 52.051s
15. Jorge Martin SPA ASPAR Mahindra Team Moto3 (Mahindra) 1m 52.090s
16. Jules Danilo FRA Ongetta-Rivacold (Honda) 1m 52.209s
17. Joan Mir SPA Leopard Racing (KTM) 1m 52.251s
18. Aron Canet SPA Estrella Galicia 0,0 (Honda) 1m 52.274s
19. Hiroki Ono JPN Honda Team Asia (Honda) 1m 52.335s
20. Andrea Locatelli ITA Leopard Racing (KTM) 1m 52.377s
21. John McPhee GBR Peugeot MC Saxoprint (Peugeot) 1m 52.425s
22. Adam Norrodin MAL Drive M7 SIC Racing Team (Honda) 1m 52.484s
23. Fabio Di Giannantonio ITA Gresini Racing Moto3 (Honda) 1m 52.505s
24. Maria Herrera SPA MH6 Laglisse (KTM) 1m 52.719s
25. Khairul Idham Pawi MAL Honda Team Asia (Honda) 1m 52.872s
26. Darryn Binder RSA Platinum Bay Real Estate (Mahindra) 1m 52.988s
27. Alexis Masbou FRA Peugeot MC Saxoprint (Peugeot) 1m 53.037s
28. Francesco Bagnaia ITA ASPAR Mahindra Team Moto3 (Mahindra) 1m 53.058s
29. Karel Hanika CZE Platinum Bay Real Estate (Mahindra) 1m 54.146s
30. Tatsuki Suzuki JPN CIP-Unicom Starker (Mahindra) 1m 55.062s
31. Lorenzo Petrarca ITA 3570 Team Italia (Mahindra) 1m 55.232s
32. Stefano Valtulini ITA 3570 Team Italia (Mahindra) 1m 55.834s
33. Fabio Spiranelli ITA CIP-Unicom Starker (Mahindra) 1m 55.875s
Źródło: crash.net